<http://schema.org/image_url>
"http://media.nola.com/politics/photo/lenfant-villerejpg-3c8a0bf5c0e4881a.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.nola.com/politics/index.ssf/2010/03/mandeville_mayoral_candidates_1.html>